Automatic frequency compensation for pulse width modulated...

Details Automatic frequency compensation for pulse width modulated... Automatic frequency compensation for pulse width modulated...

2007-08-24

2009-12-01

Chang, Joseph (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C323S282000, C323S283000, C323S288000, C363S041000

Reexamination Certificate

active

07626463

ABSTRACT:
Preferred embodiments of the present invention provide systems and methods that automatically correct the desired on-time of switching elements as the resonant frequency changes, so as to maintain the correct proportional value.

REFERENCES:
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patent: 5335162 (1994-08-01), Martin-Lopez et al.
patent: 6229293 (2001-05-01), Farrenkopf
patent: 6744241 (2004-06-01), Feldtkeller
patent: 6897640 (2005-05-01), Nebon et al.
patent: 7106130 (2006-09-01), Gan et al.
patent: 7138788 (2006-11-01), Rice
patent: 7378827 (2008-05-01), Stoichita
patent: 2006/0055387 (2006-03-01), Steele
patent: 2007/0109825 (2007-05-01), Qiu et al.

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